ES2326194T3 - METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM AND CORRESPONDING SYSTEM. - Google Patents

METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM AND CORRESPONDING SYSTEM. Download PDF

Info

Publication number
ES2326194T3
ES2326194T3 ES07020442T ES07020442T ES2326194T3 ES 2326194 T3 ES2326194 T3 ES 2326194T3 ES 07020442 T ES07020442 T ES 07020442T ES 07020442 T ES07020442 T ES 07020442T ES 2326194 T3 ES2326194 T3 ES 2326194T3
Authority
ES
Spain
Prior art keywords
period
frame
psmp
downlink
additional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
ES07020442T
Other languages
Spanish (es)
Inventor
Kyung-Hun Jang
Jong-Ae Park
Dong-Jun Lee
Young-Soo Kim
Hyo-Sun Hwang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of ES2326194T3 publication Critical patent/ES2326194T3/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
    • H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/33—Flow control; Congestion control using forward notification
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
    • H04L47/365—Dynamic adaptation of the packet size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/10—Flow control between communication endpoints
    • H04W28/14—Flow control between communication endpoints using intermediate storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/04—Scheduled or contention-free access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

Un método para recibir un periodo de transmisión asignado en un periodo de trama (300; 400) en un sistema de red inalámbrico, teniendo dicho periodo de trama una duración periódica prefijada, comprendiendo el método las etapas de: recibir una trama de multi-interrogación de ahorro de potencia PSMP (310a; 410a), proporcionando un periodo de enlace descendente y un periodo de enlace ascendente mediante un punto de acceso, AP; recibir datos desde el AP en el periodo de enlace descendente proporcionado por la trama PSMP (310a; 410a) y transmitir datos al AP en el periodo de enlace ascendente proporcionado por la trama PSMP (310a; 410a); tras la expiración de los periodos de enlace descendente y ascendente proporcionados por la trama PSMP (310a; 410a), recibir en el periodo de trama al menos una trama PSMP secundaria (310b; 410b), proporcionando al menos uno de un periodo adicional de enlace descendente y un periodo adicional de enlace ascendente; en el que la trama PSMP secundaria (310b; 410b) es una trama PSMP adicional que sigue a la trama PSMP (310a; 410a) en el mencionado periodo de trama (300; 400); y recibir datos en el periodo adicional de enlace descendente proporcionados por la trama PSMP secundaria (310b; 410b) si hay datos adicionales que recibir, y transmitir datos en el periodo adicional de enlace ascendente proporcionado por la trama PSMP secundaria (310b; 410b), si hay datos adicionales a transmitir.A method for receiving a transmission period assigned in a frame period (300; 400) in a wireless network system, said frame period having a predetermined periodic duration, the method comprising the steps of: receiving a multi-interrogation frame PSMP power saving (310a; 410a), providing a downlink period and an uplink period via an access point, AP; receive data from the AP in the downlink period provided by the PSMP frame (310a; 410a) and transmit data to the AP in the uplink period provided by the PSMP frame (310a; 410a); upon expiration of the downlink and uplink periods provided by the PSMP frame (310a; 410a), receive at least one secondary PSMP frame (310b; 410b) in the frame period, providing at least one of an additional link period downlink and an additional uplink period; wherein the secondary PSMP frame (310b; 410b) is an additional PSMP frame that follows the PSMP frame (310a; 410a) in said frame period (300; 400); and receive data in the additional downlink period provided by the secondary PSMP frame (310b; 410b) if there is additional data to be received, and transmit data in the additional uplink period provided by the secondary PSMP frame (310b; 410b), If there is additional data to transmit.

Description

Método y aparato para asignar un periodo de transmisión en un sistema de comunicación inalámbrico y sistema correspondiente.Method and apparatus for assigning a period of transmission in a wireless communication system and system correspondent.

La presente invención se refiere en general a un sistema de comunicación inalámbrico, y en particular a un método y un aparato para asignar eficientemente un periodo de transmisión, en un periodo de trama de transmisión de un sistema de red inalámbrico, y a un sistema correspondiente.The present invention generally relates to a wireless communication system, and in particular to a method and an apparatus for efficiently assigning a transmission period, in a transmission frame period of a network system wireless, and to a corresponding system.

Con el reciente desarrollo de las tecnologías de comunicación inalámbrica y la resultante propagación de equipamiento inalámbrico, hay una creciente demanda de transmisión de datos a alta velocidad y con alta fiabilidad, a través de conexión inalámbrica. Una red de área local inalámbrica (WLAN, Wireless Local Area Network) desarrollada para satisfacer la demanda, consta básicamente de estaciones (STA) que son equipamientos móviles de comunicación de datos, y un punto de acceso (AP) capaz de intercambiar datos con las STA. El AP y las STA localizadas en la misma área de cobertura de servicio inalámbrico, se conocen como un Conjunto de Servicios Base (BSS, Base Service Set).With the recent development of the technologies of wireless communication and the resulting spread of equipment  wireless, there is a growing demand for data transmission to high speed and high reliability, through connection wireless A wireless local area network (WLAN, Wireless Local Area Network) developed to meet demand, consists basically of stations (STA) that are mobile equipment of data communication, and an access point (AP) capable of exchange data with the STA. The AP and STA located in the same wireless service coverage area, they are known as a Base Service Set (BSS).

En un sistema WLAN, las STA localizadas en un área de cobertura de servicio inalámbrico, transmiten o reciben datos utilizando recursos inalámbricos asignados desde un AP. En este caso, el AP asigna los recursos inalámbricos en forma de recursos de fase, y el término "recursos de fase" se refiere un periodo en el que las STA o los AP pueden transmitir datos.In a WLAN system, STAs located in a Wireless service coverage area, transmit or receive data using wireless resources assigned from an AP. In In this case, the AP allocates wireless resources in the form of phase resources, and the term "phase resources" refers to a period in which the STA or AP can transmit data.

La figura 1 ilustra la estructura de un periodo de trama de transmisión, en un sistema WLAN convencional.Figure 1 illustrates the structure of a period of transmission frame, in a conventional WLAN system.

En referencia a la figura 1, en un periodo de transmisión de trama 100 que tiene una longitud fija determinada en el sistema, el AP transmite una trama MAP (mapeo) 110 que indica la asignación de recursos de fase para todo el periodo de trama de transmisión 100. La trama MAP 110 consta de una MAP 120 de enlace descendente, que indica un periodo en el que el AP puede transmitir datos, y una MAP de enlace ascendente 122 que indica un periodo en el que las STA pueden transmitir datos. La MAP de enlace descendente 120 consta de un campo de Número de STA 130, y al menos un campo de Información de STA 132 determinado en función del campo Número de STA 130. De forma similar, la MAP de enlace ascendente 122 consta de un campo Número de STA 134, y al menos un campo de Información de STA 136 determinado en función del campo Número de STA 134. Los campos de Información de STA 132 y 136, incluyen cada uno campos de ID de STA 140 y 144, que indican periodos de enlace descendente o enlace ascendente asignados a las STA, y campos de Desfase Temporal 142 y 146 que indican desfases de tiempo asignados a las STA.Referring to figure 1, in a period of frame transmission 100 having a fixed length determined in the system, the AP transmits a MAP (mapping) 110 frame indicating the allocation of phase resources for the entire frame period of transmission 100. The MAP 110 frame consists of a link MAP 120 descending, which indicates a period in which the AP can transmit data, and an uplink MAP 122 indicating a period in which STA can transmit data. The downlink MAP 120 consists of a STA 130 Number field, and at least one field of STA 132 information determined according to the field Number of STA 130. Similarly, uplink MAP 122 consists of a STA 134 number field, and at least one Information field of STA 136 determined based on the STA Number field 134. Information fields of STA 132 and 136, each include fields of STA ID 140 and 144, which indicate downlink periods or uplink assigned to STAs, and Temporary Offset fields 142 and 146 indicating time lags assigned to the STAs.

Una STA a la que se ha asignado un periodo en la trama MAP 110, recibe datos en un periodo indicado por la correspondiente información de STA, de un periodo de enlace descendente 112, y transmite datos en un periodo indicado por la correspondiente información de STA, de un periodo de enlace ascendente. La STA mantiene un modo de espera en el otro periodo, excepto para el periodo en el que la trama MAP 110 se transmite y el periodo indicado por la trama MAP 110. Un periodo de contención 116 que sigue al periodo de enlace ascendente 114, puede ser accedido mediante al menos una STA sobre un esquema de contención.An STA to which a period has been assigned in the MAP 110 frame, receives data in a period indicated by the corresponding STA information, from a link period descending 112, and transmits data in a period indicated by the corresponding STA information, from a link period upward. The STA maintains a standby mode in the other period, except for the period in which the MAP 110 frame is transmitted and the period indicated by the MAP 110 frame. A containment period 116 which follows the uplink period 114, can be accessed by at least one STA on a containment scheme.

De este modo, el AP estima la cantidad de recursos requeridos para cada STA en un periodo de trama de transmisión 100, y asigna periodos de enlace descendente y enlace ascendente de acuerdo con la estimación. Sin embargo, cuando el AP sobrevalora la cantidad de recursos requeridos para la STA, los recursos inalámbricos son desperdiciados, disminuyendo la característica del caudal de proceso y transferencia de datos. En este caso, la STA pueden utilizar los recursos inalámbricos asignados. Es más, tal recurso no puede ser reutilizado por otras STA puesto que tal recurso está ya asignado a la STA concreta. Cuando el AP infravalora la cantidad de recursos requeridos para la STA, no puede asignarse a la STA los recursos que requiere, al menos hasta el siguiente periodo de trama de transmisión, sufriendo retraso en la transmisión y fluctuaciones en el servicio de enlace ascendente. El retardo en la transmisión y la fluctuación, afectan a la calidad de servicio (QoS, Quality of Service) requerido por la STA. Además, si la STA accede al periodo de contención 116 debido a una carencia en sus recursos asignados, la STA no puede funcionar en el modo de espera durante el periodo de contención, desperdiciando su potencia.Thus, the AP estimates the amount of resources required for each STA in a frame period of transmission 100, and allocates downlink and link periods ascending according to the estimate. However, when the AP overvalue the amount of resources required for the STA, the wireless resources are wasted, decreasing the characteristic of the process flow and data transfer. In In this case, the STA can use the wireless resources assigned. Moreover, such a resource cannot be reused by others. STA since such resource is already assigned to the specific STA. When the AP underestimates the amount of resources required for the STA, the resources it requires cannot be assigned to the STA, at least until the next transmission frame period, suffering transmission delay and fluctuations in the link service upward. Transmission delay and fluctuation affect to the quality of service (QoS) required by the STA. In addition, if the STA accesses containment period 116 due to a lack in its allocated resources, the STA cannot work in standby mode during the containment period, wasting its power.

Por lo tanto, en el sistema de comunicación inalámbrico en el que el AP determina los periodos de enlace descendente y enlace ascendente requeridos para la STA, a través de planificación, existe la necesidad de una tecnología que impida la reducción en el caudal de proceso y transferencia de datos, y el desperdicio de potencia STA, para asignar de forma eficiente los periodos de enlace descendente y enlace ascendente.Therefore, in the communication system wireless in which the AP determines the link periods downlink and uplink required for the STA, through planning, there is a need for a technology that prevents reduction in process flow and data transfer, and the STA power wastage, to efficiently allocate Downlink and uplink periods.

El documento WO 2006/134 472 Al, que ha sido publicado el 21 de diciembre de 2006 y reivindica prioridad del 16 de junio 2005, revela la transmisión de datos de planificación para mejorar la eficiencia en la potencia en una red inalámbrica. Después de que una estación es asociada con un AP, dos nodos establecen una planificación de transmisión de datos, indicando un periodo de servicio mediante intercambiar una o más tramas o mensajes indicando un tiempo de inicio de la planificación para un periodo de servicio. La trama PSMP permite a un AP o a un nodo inalámbrico, proporcionar planes o planes secundarios, a cada uno de una pluralidad de estaciones o nodos inalámbricos. El cuerpo de la trama incluye un conjunto de parámetros PSMP, y uno o más campos de información de la estación. Los parámetros PSMP pueden incluir campos del número de estaciones, que indican una serie de campos de información de estación, presentes en el cuerpo de la trama. Además, un campo Más-PSMP puede fijarse a 1 para indica que la secuencia PSMP puede típicamente estar seguida por otra secuencia PSMP. Alternativamente, el campo Más PSMP puede fijarse a cero para indicar que es la última secuencia PSMP durante este periodo de servicio. Además una secuencia PSMP puede incluir una trama PSMP seguida por la transmisión de datos planificados hacia (enlace descendente) y/o desde (enlace ascendente) una o más estaciones, según se indique por la trama PSMP. El campo desfase del comienzo de la transmisión de enlace descendente, indica un tiempo de inicio para la transmisión pía niñeada de datos de enlace descendente, desde el AP a la estación. Un campo de desfase de inicio de transmisión de enlace ascendente y un campo de duración ULT están provistos dentro del campo STA-Info, para comunicar un tiempo de inicio y una duración para una transmisión de datos de enlace ascendente, para un nodo o una estación La secuencia PSMP incluye la transmisión de una trama PSMP seguida por un periodo planificado de transmisión di datos en radiodifusión y/o multidifusión de enlace descendente, a uno o más nodos receptores, un periodo planificado de transmisión de datos en unidifusión de enlace descendente, y un periodo planificado de transmisión en unidifusión de enlace ascendente, desde uno o más nodos receptores.WO 2006/134 472 Al, which has been published on December 21, 2006 and claims priority of 16 June 2005, reveals the transmission of planning data for improve power efficiency in a wireless network. After a station is associated with an AP, two nodes establish a data transmission schedule, indicating a service period by exchanging one or more frames or messages indicating a planning start time for a period of service. The PSMP frame allows an AP or node wireless, provide plans or secondary plans, to each of a plurality of wireless stations or nodes. The body of the frame includes a set of PSMP parameters, and one or more fields of station information. PSMP parameters may include fields of the number of stations, which indicate a series of fields of station information, present in the frame body. Further, a More-PSMP field can be set to 1 to indicate that the PSMP sequence can typically be followed by another sequence PSMP Alternatively, the More PSMP field can be set to zero to indicate that it is the last PSMP sequence during this period of service. In addition, a PSMP sequence may include a PSMP frame. followed by the transmission of planned data to (link down) and / or from (uplink) one or more stations, as indicated by the PSMP frame. The offset phase of the beginning of downlink transmission, indicates a start time for the peeked transmission of downlink data, from the AP to the station. A start offset field of uplink transmission and a ULT duration field are provided within the STA-Info field, to communicate a start time and a duration for a data transmission of uplink, for a node or station The PSMP sequence includes the transmission of a PSMP frame followed by a period planned transmission of data in broadcasting and / or multicast downlink, to one or more receiving nodes, a planned period of unicast data transmission of downlink, and a planned transmission period in uplink unicast, from one or more nodes receivers

El objeto de la presente invención es proporcionar un método mejorado para recibir un periodo de transmisión asignado en un periodo de trama en un sistema de red inalámbrico, y un correspondiente aparato de estación correspondiente.The object of the present invention is provide an improved method to receive a period of transmission assigned in a frame period in a network system wireless, and a corresponding station device correspondent.

Este objeto se consigue mediante la materia objeto de las reivindicaciones independientes.This object is achieved through matter Subject of the independent claims.

Las realizaciones preferidas se definen mediante las reivindicaciones dependientes.Preferred embodiments are defined by the dependent claims.

Para resolver sustancialmente al menos los problemas y/o desventajas anteriores, y para proporcionar al menos la ventajas que sigue, la presente invención proporciona un método y un aparato de asignación del periodo de transmisión para minimizar el gasto de potencia STA sin reducir el caudal de proceso y transferencia de datos en un sistema de comunicación inalámbrico, y un sistema correspondiente.To substantially resolve at least the previous problems and / or disadvantages, and to provide at least the advantages that follow, the present invention provides a method and an apparatus for assigning the transmission period to minimize STA power consumption without reducing process flow and data transfer in a wireless communication system, and A corresponding system.

La presente invención proporciona un método y un aparato para asignar flexiblemente un periodo de transmisión requerido por una STA que utiliza más de dos tramas MAP en un sistema de comunicación inalámbrico.The present invention provides a method and a device to flexibly assign a transmission period required by an STA that uses more than two MAP frames in a Wireless communication system

De acuerdo con otro aspecto de la presente invención, se proporciona un método para recibir un periodo de transmisión asignado en un sistema de red inalámbrico. El método incluye recibir una trama de multi-interrogación de ahorro de potencia (PSMP) que proporciona un periodo de enlace descendente y un periodo de enlace ascendente provisto mediante un punto de acceso (AP); recibir datos desde el AP en el periodo de enlace descendente proporcionado por la trama PSMP, y transmitir datos al AP en el periodo de enlace ascendente proporcionado por la trama PSMP; tras la expiración de los periodos de enlace descendente y enlace ascendente proporcionados por la trama PSMP, recibir en el periodo de trama menos una trama PSMP secundaria que proporciona al menos uno entre un periodo adicional de enlace descendente y un periodo adicional de enlace ascendente, el periodo adicional de enlace descendente proporcionándose en el periodo de trama si hay datos adicionales a ser recibidas, y el periodo adicional de enlace ascendente proporcionándose en el periodo de trama si hay datos adicionales a ser transmitidos; y recibir datos en el periodo adicional de enlace descendente proporcionado por la trama PSMP secundaria, si hay datos adicionales a ser recibidos, y transmitir datos en el periodo adicional de enlace ascendente proporcionado por la trama PSMP secundaria, si hay datos adicionales a ser transmitidos.In accordance with another aspect of this invention, a method for receiving a period of assigned transmission in a wireless network system. The method includes receiving a multi-interrogation plot of power saving (PSMP) that provides a link period downlink and an uplink period provided by a access point (AP); receive data from the AP in the period of downlink provided by the PSMP frame, and transmit data to the AP in the uplink period provided by the PSMP frame; after the expiration of the link periods downlink and uplink provided by the PSMP frame, receive in the frame period less a secondary PSMP frame than provide at least one between an additional link period downlink and an additional uplink period, the period additional downlink provided in the period of frame if there is additional data to be received, and the period additional uplink provided in the period of frame if there is additional data to be transmitted; and receive data in the additional downlink period provided by the secondary PSMP frame, if there is additional data to be received, and transmit data in the additional uplink period provided by the secondary PSMP frame, if there is additional data To be transmitted.

De acuerdo con otro aspecto más de la presente invención, se proporciona un aparato de estación (STA) para recibir un periodo asignado de transmisión, en un sistema de red inalámbrico. El aparato de STA incluye un procesador para analizar una trama de multi-interrogación de ahorro de potencia (PSMP), que proporciona un periodo de enlace descendente y un periodo de enlace ascendente provistos mediante un punto de acceso (AP), y tras la expiración de los periodos de enlace descendente y de enlace ascendente proporcionados por la trama PSMP, recibir en el periodo de trama al menos una trama PSMP secundaria, que proporciona al menos uno entre un periodo adicional de enlace descendente y un periodo adicional de enlace ascendente, el periodo adicional de enlace descendente estando provisto en el periodo de trama si hay datos adicionales a ser recibidos, y el periodo adicional de enlace ascendente estando provisto en el periodo de trama si hay datos adicionales a ser transmitidos; un transceptor para recibir desde el AP la trama PSMP y la trama PSMP secundaria, distribuir al procesador la trama PSMP y la trama PSMP secundaria recibidas, recibir datos desde el AP en el periodo de enlace descendente proporcionado por la trama PSMP, y transmitir datos al AP en el periodo de enlace ascendente proporcionado por la trama PSMP, y recibir datos en el periodo adicional de enlace descendente proporcionado por la trama PSMP secundaria, si hay datos adicionales a ser recibidos, y transmitir datos en el periodo adicional de enlace ascendente proporcionado por la trama PSMP secundaria, si hay datos adicionales a ser transmitidos.In accordance with another aspect of this invention, a station apparatus (STA) is provided to receive an assigned period of transmission, in a network system wireless The STA apparatus includes a processor to analyze a multi-query plot saving power (PSMP), which provides a downlink period and an uplink period provided by a point of access (AP), and after the expiration of the link periods downlink and uplink provided by the frame PSMP, receive at least one PSMP frame in the frame period secondary, which provides at least one between an additional period downlink and an additional uplink period, the additional downlink period being provided in the frame period if there is additional data to be received, and the additional uplink period being provided in the frame period if there is additional data to be transmitted; a transceiver to receive the PSMP frame and PSMP frame from the AP secondary, distribute the PSMP frame and the PSMP frame to the processor secondary received, receive data from the AP in the period of downlink provided by the PSMP frame, and transmit data to the AP in the uplink period provided by the PSMP frame, and receive data in the additional link period descending provided by the secondary PSMP frame, if there is additional data to be received, and transmit data in the period additional uplink provided by the PSMP frame secondary, if there is additional data to be transmitted.

Breve descripción de los dibujosBrief description of the drawings

Los anteriores y otros objetos, características y ventajas de la presente invención, estarán más claros a partir de la siguiente descripción detallada, cuando se considere junto con los dibujos anexos, en los que:The above and other objects, characteristics and advantages of the present invention, will be clearer from The following detailed description, when considered in conjunction with the attached drawings, in which:

La figura 1 es un diagrama que ilustra una estructura de un periodo de trama de transmisión, en un sistema WLAN convencional;Figure 1 is a diagram illustrating a structure of a transmission frame period, in a system Conventional WLAN; 

       \newpage\ newpage

La figura 2A es un diagrama que ilustra una configuración de un sistema WLAN de acuerdo con la presente invención;Figure 2A is a diagram illustrating a configuration of a WLAN system in accordance with this invention;

La figura 2B es un diagrama de bloques que ilustra una estructura a modo de ejemplo, de un AP de cada STA en el sistema WLAN mostrado en la figura 2A;Figure 2B is a block diagram that illustrates an example structure of an AP of each STA in the WLAN system shown in Figure 2A;

La figura 3 es un diagrama que ilustra una estructura de un periodo de trama de transmisión, de acuerdo con la presente invención; yFigure 3 is a diagram illustrating a structure of a transmission frame period, according to the present invention; Y

La figura 4 es un diagrama de sincronización, que ilustra un efecto de reducción de potencia de la asignación de recursos de fase, de acuerdo con la presente invención.Figure 4 is a synchronization diagram, illustrating a power reduction effect of the assignment of phase resources, in accordance with the present invention. 

       \vskip1.000000\baselineskip\ vskip1.000000 \ baselineskip
Descripción detallada de realizaciones preferidasDetailed description of preferred embodiments

Ahora se describirá en detalle realizaciones preferidas de la presente invención, con referencia a los dibujos anexos. En la siguiente descripción, por claridad y concisión se ha omitido una descripción detallada de funciones y configuraciones aquí incorporadas y ya conocidas.Embodiments will now be described in detail Preferred of the present invention, with reference to the drawings annexes In the following description, for clarity and conciseness it has been omitted a detailed description of functions and settings here incorporated and already known.

Una característica principal de la presente invención, que está relacionada con la asignación de periodos de transmisión en un sistema de comunicación inalámbrico, es proporcionar más de una trama MAP (mapeo) para indicar un periodo asignado por un punto de acceso (AP), a cada estación (STA) en un periodo de trama de transmisión.A main feature of the present invention, which is related to the allocation of periods of transmission in a wireless communication system, is provide more than one MAP frame (mapping) to indicate a period assigned by an access point (AP), to each station (STA) in a transmission frame period.

El periodo asignado comienza inmediatamente después de la transmisión de la trama MAP, y en el periodo de trama de transmisión, las tramas MAP diferentes de la primera trama MAP serán aludidas como "MAP subsiguiente: (MAP secundarias)".The assigned period begins immediately after the transmission of the MAP frame, and in the frame period transmission, different MAP frames from the first MAP frame they will be referred to as "subsequent MAP: (secondary MAP)".

Aunque se realizará una descripción detallada de la presente invención, con referencia a un sistema de red inalámbrica de área local (WLAN) basado en los estándares IEEE 802.11, las personas especialistas en la técnica comprenderán que la asignación de recursos de fase, un objeto básico de la presente invención, puede aplicarse también a otros sistemas de comunicación inalámbrica que tengan requisitos técnicos y formatos de canal similares, sin alejarse de la invención.Although a detailed description of the present invention, with reference to a network system wireless local area (WLAN) based on IEEE standards 802.11, people skilled in the art will understand that the allocation of phase resources, a basic object of this invention, can also be applied to other communication systems wireless that have technical requirements and channel formats similar, without departing from the invention.

La figura 2A ilustra una configuración de un sistema WLAN de acuerdo con la presente invención.Figure 2A illustrates a configuration of a WLAN system according to the present invention.

En relación a la figura 2A, cada uno de los AP 202 y 210 está conectado a una red cableada 200, y una pluralidad de STA (204, 206, 208, 212) y 214 accede a sus AP asociados 202 y 210, a través de una capa física (PHY) IEEI 802.11 y una conexión inalámbrica basada en un protocolo de control de acceso al medio (MAC, Media Access Control), y transmiten/reciben datos sobre una pluralidad de canales inalámbricos. Las STA 204a 208 y el AP 202 localizados en el mismo área de cobertura de servicio inalámbrico 220, constituyen un conjunto de servicios base (BSS, Base Service Set). Del mismo modo, las STA 212 y 214 y el AP 210, localizados en el área de cobertura di servicio inalámbrico 222, forman otro BSS. Las STA localizadas en cada BSS pueden intercambiar datos entre si través de un correspondiente AP. Las funciones clave de los AP 202 y 210 incluyen la distribución de tráfico de datos el acceso a otra red (por ejemplo la red cableada 200), el soporte de vagabundeo, la sincronización en un BSS, el soporte de gestión de potencia, y el control de acceso al medio para soportar servicios limitados en el tiempo, en un BSS.In relation to Figure 2A, each of the APs 202 and 210 is connected to a wired network 200, and a plurality of STA (204, 206, 208, 212) and 214 access their associated APs 202 and 210, through an IEEI 802.11 physical layer (PHY) and a connection wireless based on a media access control protocol (MAC, Media Access Control), and transmit / receive data on a plurality of wireless channels. STA 204a 208 and AP 202 located in the same wireless service coverage area 220, constitute a set of base services (BSS, Base Service Set). Similarly, STA 212 and 214 and AP 210, located at the wireless service coverage area 222, form another BSS. STAs located in each BSS can exchange data with each other through a corresponding AP. The key functions of AP 202 and 210 include the distribution of data traffic access to another network (for example wired network 200), the rover support, the synchronization in a BSS, power management support, and the media access control to support limited services in the time, in a BSS.

La figura 2B es un diagrama de bloques que ilustra una estructura a modo de ejemplo, de un AP y cada STA en e sistema WLAN mostrado en la figura 2A. Tanto el AP como la STA pueden incluir una pantalla 232, un procesado 234, un transceptor 236, la unidad de entrada 238, un almacenamiento 240, una memoria de acceso aleatorio (RAM) 242, una memoria de solo lectura (ROM) 244 y un bus común 230. La estructura ilustrada a modo de ejemplo se proporciona solo por conveniencia. Si bien se describirá aquí, con referencia a la figura 2B, elementos específicos; sus operaciones en un sistema informático que sirve como un AP o una STA, la descripción a modo de ejemplo no debe limitar la presente invención.Figure 2B is a block diagram that illustrates an exemplary structure of an AP and each STA in e WLAN system shown in Figure 2A. Both AP and STA they can include a screen 232, a processing 234, a transceiver 236, the input unit 238, a storage 240, a memory of random access (RAM) 242, a read-only memory (ROM) 244 and a common bus 230. The structure illustrated by way of example is Provide only for convenience. While it will be described here, with reference to figure 2B, specific elements; its operations in a computer system that serves as an AP or a STA, the description by way of example should not limit this invention.

En referencia a la figura 2B, el transceptor 236 conectado a una antena (no mostrada), recibe datos deseados; convierte la señal recibida en datos digitales correspondientes. El procesador 234 es un controlador que funciona bajo el control de un sistema operativo (OS) y otros programas incluidos en la ROM 244, y los datos y la información generados mediante el funcionamiento del procesador 234, son memorizados en la RAM 242.Referring to Figure 2B, transceiver 236 connected to an antenna (not shown), receives desired data; converts the received signal into corresponding digital data. He processor 234 is a controller that works under the control of a operating system (OS) and other programs included in ROM 244, and the data and information generated by the operation of the processor 234, are memorized in RAM 242.

Las operaciones clave del procesador 234 incluido en el AP, incluyen la generación/análisis de datos, la asignación de periodos para las STA localizadas en el mismo área de cobertura de servicio inalámbrico y conectada al AP, 1 generación de al menos una trama MAP que indica el periodo asignado, y el control del modo de funcionamiento par el transceptor 236, en base al periodo asignado. Específicamente, el procesador 234 del AP asigna recursos iniciales R_{ini} a las STA, a través de una trama MAP localizada en la primera parte de una trama de transmisión, y si hay necesidad de una asignación adicional de recursos el procesador 234 asigna adicionalmente, para la transmisión de enlace descendente/enlace ascendente, el periodo restante en el periodo de trama de transmisión, al menos a una STA que requiere la asignación adicional de recursos, a través de la trama MAP secundaria transmitida inmediatamente a continuación de una duración de secuencia asociada con la primera trama MAP de la trama de transmisión. Par las personas especialistas en la técnica, será obvio que el término "inmediatamente después" se refiere sustancialmente al transcurso de un tiempo predeterminado.The key operations of the processor 234 included in the AP, include the generation / analysis of data, the assignment of periods for STAs located in the same area of Wireless service coverage and connected to the AP, 1 generation of at least one MAP frame indicating the assigned period, and the operating mode control for transceiver 236, based to the assigned period. Specifically, the processor 234 of the AP allocates initial resources R_ {ini} to the STAs, through a MAP frame located in the first part of a frame of transmission, and if there is a need for an additional allocation of resources processor 234 allocates additionally, for the downlink transmission / uplink, the period remaining in the transmission frame period, at least one STA which requires the additional allocation of resources, through the secondary MAP frame transmitted immediately following a sequence duration associated with the first MAP frame of the transmission frame. For people skilled in the art, it will be obvious that the term "immediately after" refers substantially over the course of a predetermined time.

Tras la expiración del periodo de enlace descendente/enlace ascendente, indicado por la primera trama MAP, si es necesario puede transmitirse adicionalmente más de una trama MAP secundaria indicando los periodos de enlace descendente y/o enlace ascendente asignados en el mismo periodo de trama de transmisión. La trama MAP secundaria va seguida por los periodos de enlace descendente y/o enlace ascendente, indicados por la trama MAP secundaria.After the expiration of the link period downlink / uplink, indicated by the first MAP frame, if If necessary, more than one MAP frame can be additionally transmitted secondary indicating the periods of downlink and / or link Ascending assigned in the same transmission frame period. The secondary MAP frame is followed by the link periods downlink and / or uplink, indicated by the MAP frame high school.

Las operaciones clave del procesador 234 incluidas en la STA, incluyen la generación/análisis de datos, la generación de una trama de transmisión, y el control del modo de funcionamiento para el transceptor 236 en función de una trama MAP recibida desde el punto inicial de la trama de transmisión. Es decir, el procesador 234 controla el transceptor 236 de tal forma que recibe la trama MAP desde el AP en el punto inicial de cada trama de transmisión y analiza la trama MAP para determinar si está incluida su ID (identificación) de STA. Si su propia ID de STA está incluida en la trama MAP, el procesador 234 almacena en la memoria 240 información relacionada con los periodo asignados de enlace descendente y enlace ascendente, indicados por la información STA asociada con el ID de la STA y después activa tanto un receptor como un transmisor del transceptor 236 en los periodos de enlace descendente enlace ascendente, para recibir/transmitir los datos. El receptor y el transmisor del transceptor 236 entran en el modo de espera, en los otros periodos que no son los periodos asignados. Además, el procesador 234 de la STA monitoriza si tras la expiración de todo el periodo indicado por la trama MAP, se recibe desde el AP una trama MAP secundaria que indica recursos asignados adicionalmente, y tras la recepción de la trama MAP secundaría, analiza la trama MA1 secundaria recibida.The key operations of the processor 234 included in the STA, include the generation / analysis of data, the generation of a transmission frame, and control of the mode of operation for transceiver 236 based on a MAP frame received from the starting point of the transmission frame. Is that is, processor 234 controls transceiver 236 in such a way which receives the MAP frame from the AP at the starting point of each transmission frame and analyzes the MAP frame to determine if it is including your STA ID. If your own STA ID is included in the MAP frame, processor 234 stores in memory 240 information related to the assigned link periods downlink and uplink, indicated by STA information associated with the STA ID and then activates both a receiver and a transmitter of transceiver 236 in the link periods downlink uplink, to receive / transmit the data. He receiver and transceiver transmitter 236 enter the mode of wait, in the other periods that are not the assigned periods. In addition, STA processor 234 monitors whether after expiration of the entire period indicated by the MAP frame, it is received from the AP a secondary MAP frame indicating allocated resources additionally, and upon receipt of the secondary MAP frame, analyzes the secondary MA1 frame received.

La figura 3 ilustra una estructura de un periodo de trama de transmisión de acuerdo con la presente invención. Si bien aquí se ilustra que las tramas y los periodos de enlace descendente/ascendente son adyacentes, en el sistema real pueden existir intervalos para procesamiento y conmutación de la transmisión/recepción.Figure 3 illustrates a one-period structure of transmission frame according to the present invention. Yes well here it is illustrated that the frames and link periods descending / ascending are adjacent, in the real system they can there are intervals for processing and switching of the transmission / reception

En referencia a la figura 3, en un periodo de trama de transmisión 300 que tiene una longitud fija, un primer AP transmite una trama MAP 310a con un conjunto básico de velocidades (que incluye esquema de modulación, veracidad de codificación y velocidad de datos), que es menor que un conjunto normal de velocidades. Esto es para permitir que todas las STA en el área de cobertura de servicio reciban la trama MAP 310a. Inicialmente, la trama MAP 310a se transmite periódicamente de acuerdo con un periodo fijo (por ejemplo, unos 20 ms y 100 ms para Voz sobre Protocolo de Internet (VoIP, Voice over Internet Protocol) y para el Grupo de Expertos de Imágenes en Movimiento 4 (MPEG4, Moving Picture Experts Group 4), respectivamente) determinado a través de la negociación entre el AP y la STA. El periodo de trama de transmisión 300 es inicializado mediante la transmisión de la trama MAP 310a.Referring to figure 3, in a period of transmission frame 300 having a fixed length, a first AP transmits a MAP 310a frame with a basic set of speeds (which includes modulation scheme, coding accuracy and data rate), which is less than a normal set of speeds. This is to allow all STAs in the area of service coverage receive the MAP 310a frame. Initially, the MAP 310a frame is transmitted periodically according to a period fixed (for example, about 20 ms and 100 ms for Voice over Protocol Internet (VoIP, Voice over Internet Protocol) and for the Group of Motion Picture Experts 4 (MPEG4, Moving Picture Experts Group 4), respectively) determined through negotiation between the AP and the STA. The transmission frame period 300 is initialized by the transmission of the MAP 310a frame.

Por ejemplo la trama MAP 310a, para indicar la asignación de recursos de fase de su subsiguiente periodo de enlace descendente 312 y el primer periodo de enlace ascendente 314a, se compone de una MAP de enlace descendente 320 que indica un periodo en el que el AP puede transmitir datos en el periodo de enlace ascendente 312, y una primera MAP de enlace descendente 322a que indica un periodo en el que la STA puede transmitir datos en el primer periodo de enlace ascendente 314a. La MAP 320 de enlace descendente se compone de un campo Número de STA 330, y al menos un campo de Información de STA 332 determinado en función del campo Número de STA 330. Del mismo modo, la primera MAP de enlace ascendente 322a está compuesta de un campo Número de STA 334a, y al menos un campo de Información de STA 336a determinado en función del campo Número de STA 334a.For example the MAP 310a frame, to indicate the allocation of phase resources of its subsequent link period downlink 312 and the first uplink period 314a, is it consists of a downlink MAP 320 indicating a period in which the AP can transmit data in the link period uplink 312, and a first downlink MAP 322a that indicates a period in which the STA can transmit data in the First uplink period 314a. The MAP 320 link descending consists of a STA 330 number field, and at least one STA 332 Information field determined according to the field STA number 330. Similarly, the first link MAP ascending 322a is composed of a STA Number field 334a, and at minus a STA 336a Information field determined based on the STA number field 334a.

Los campos de Información de STA 332 y 336a, incluyen cada uno campos ID de STA 340 y 344a que indican STA a las que se ha asignado periodos, en el periodo de enlace descendente 312 y el primer periodo de enlace ascendente 314a, campos de desfase de tiempo 342 y 346a que indican tiempos de inicio de los periodos asignados a las STA, y campos de duración 343 y 348a que indican las longitudes de los periodos asignados. Los campos ID de STA 340 y 344a, incluyen cada uno al menos una parte de una Identidad de Asociación (AID) de cada STA, o al menos una parte de una dirección de equipamiento físico, es decir una dirección MAC, proporcionada a cada STA. Una ID de STA que indica un periodo para radiodifusión/multidifusión de datos, se fija a un valor concreto, por ejemplo a "0". Los campos de desfase temporal 342 y 346a, indican cada uno un intervalo desde la trama MAP 310a hasta un tiempo de inicio de un periodo correspondiente, como un múltiplo de una unidad de tiempo predeterminado (por ejemplo, \mus). Los campos de duración 343 y 348a indican cada uno, un intervalo desde un tiempo de inicio hasta un tiempo final del periodo, es decir indican la duración del periodo como un múltiplo de una unidad de tiempo predeterminado (por ejemplo, 16 \mus).The information fields of STA 332 and 336a, each includes STA ID fields 340 and 344a indicating STA at that periods have been assigned, in the 312 downlink period and the first uplink period 314a, offset fields of time 342 and 346a indicating the start times of the periods assigned to STAs, and duration fields 343 and 348a indicating the lengths of the assigned periods. STA 340 ID fields and 344a, each include at least a part of an Identity of Association (AID) of each STA, or at least a part of an address of physical equipment, ie a MAC address, provided to each STA. A STA ID indicating a period for broadcasting / multicasting data, is set to a specific value, for example to "0". The time lag fields 342 and 346a, each indicate an interval from the MAP 310a frame to a start time of a corresponding period, as a multiple of a predetermined unit of time (for example, \ mus). The duration fields 343 and 348a each indicate a range from a start time to an end time of the period, that is indicate the duration of the period as a multiple of a unit of default time (for example, 16 \ mus).

La primera MAP de enlace ascendente 322a de la trama MAP 310a, indica un primer periodo de enlace ascendente asignado para la STA, y puede ser determinada de acuerdo con una velocidad de datos requerida para el servicio individual conectado por cada STA, o la cantidad de datos estimados por el AP. La STA, con un periodo asignado mediante la trama MAP 310a, recibe datos en el periodo indicado por la correspondiente información de STA 332, en el periodo de enlace descendente 312, y transmite datos en el periodo indicado por la correspondiente información de STA 336a, en el primer periodo de enlace ascendente 314a. Los datos de enlace descendente y de enlace ascendente pueden incluir MPDUs que incluyen una o más Unidades de Datos de Protocolo (PDU, Protocol Data Unit) de MAC Agregado (A-MPDU) y/o carga útil, y un Acuse de recibo. La STA mantiene el modo de espera en el periodo en el que la trama MAP 310a se transmite, y en los otros periodos excepto los indicados por la trama MAP
310a.The first uplink MAP 322a of the MAP 310a frame indicates a first uplink period assigned for the STA, and can be determined according to a data rate required for the individual service connected by each STA, or the amount of data estimated by the AP. The STA, with a period assigned by the MAP 310a frame, receives data in the period indicated by the corresponding STA 332 information, in the downlink period 312, and transmits data in the period indicated by the corresponding STA 336a information, in the first uplink period 314a. The downlink and uplink data may include MPDUs that include one or more MAC Aggregate Protocol Data Units (PDUs) and / or payload, and an acknowledgment. The STA maintains the standby mode in the period in which the MAP 310a frame is transmitted, and in the other periods except those indicated by the MAP frame
310a.

Después de transmitir los datos en el periodo asignado, del primer periodo de enlace ascendente 314a, cada STA determina si hay necesidad de asignación adicional de recursos. La necesidad de asignación adicional de recursos se determina en función de si hay datos adicionales de transmisión, o si hay información por recibir desde el AP. Se omitirá una descripción detallada de esto, para no oscurecer una comprensión clara de la presente invención. Una STA que requiere asignación adicional de recursos, monitoriza una trama MAP 310b secundaria, tras la expiración del primer periodo de enlace ascendente 314a. La trama MAP secundaria 310b puede indicar los recursos de enlace descendente y/o enlace ascendente, asignados adicionalmente mediante el AP, y en la figura 3 se muestra que la trama MAP secundaria 310b indica la asignación de recursos adicionales de enlace ascendente, a modo de ejemplo.After transmitting the data in the period assigned, from the first uplink period 314a, each STA determines if there is a need for additional allocation of resources. The need for additional allocation of resources is determined in function of whether there is additional transmission data, or if there is information to receive from the AP. A description will be omitted detailed of this, so as not to obscure a clear understanding of the present invention An STA that requires additional allocation of resources, monitors a secondary MAP 310b frame, after expiration of the first uplink period 314a. The plot Secondary MAP 310b can indicate link resources downlink and / or uplink, additionally assigned by the AP, and in Figure 3 it is shown that the secondary MAP frame 310b indicates the allocation of additional uplink resources, as an example.

Es decir, la trama MAP secundaria 310b incluye una segunda MAP de enlace ascendente 322b que índica la asignación de recursos en fase, para su subsiguiente segundo periodo de enlace ascendente 314b. De forma similar, la trama MAP secundaria 310b puede ser transmitida con el conjunto de velocidad básico. La segunda MAP de enlace ascendente 322 se compone de un campo Número de STA 334b, y al menos un campo de Información de STA 336 determinado en función del campo Número de STA 334b. El campo de Información de STA 336b incluye un campo ID 344b de STA, que indica una STA asignada a un periodo en el segundo periodo de enlace ascendente 314b, un campo de desfase de tiempo 346b que indica un tiempo de inicio del periodo asignado a la STA, y un campo de duración 348b que indica una duración del periodo. Los elementos del campo de información de STA 336b han sido descritos arriba. Una STA con recursos de fase asignados mediante la trama MAP secundaria 310b, recibe datos en el periodo indicado por la correspondiente información de la STA 336b, del segundo periodo de enlace ascendente 314b.That is, the secondary MAP frame 310b includes a second uplink MAP 322b indicating the assignment of resources in phase, for its subsequent second link period ascending 314b. Similarly, secondary MAP frame 310b It can be transmitted with the basic speed set. The second uplink MAP 322 consists of a Number field of STA 334b, and at least one STA 336 Information field determined based on the STA Number field 334b. The field of STA information 336b includes a STA ID 344b field, which indicates an STA assigned to a period in the second link period ascending 314b, a time offset field 346b indicating a start time of the period assigned to the STA, and a field of duration 348b indicating a period duration. The elements of the information field of STA 336b have been described above. A STA with phase resources allocated through the secondary MAP frame 310b, receives data in the period indicated by the corresponding STA 336b information, from the second uplink period 314b.

Aunque no se ilustra, si existe otra necesidad de asignación adicional de recursos, en el periodo de transmisión 300 puede incluirse adicionalmente más de una trama MAP secundaria y un periodo de enlace ascendente o un periodo de enlace descendente, en función de las tramas MAP secundarias. Un esquema de transmisión que utiliza una trama MAP capaz de acompañar una o más tramas secundarías, es aludido como una "Multi-Interrogación de Ahorro de Potencia (PSMP)" Multi-Fase, y la trama MAP 310a y la trama MAP secundaria 310b son aludidas como una trama PSMP y una trama PSMP secundaria, respectivamente. Tanto la trama PSMP corno la trama PSMP secundaria, están seguidas por al menos un periodo de enlace descendente o enlace ascendente indicado por la correspondiente trama PSMP (secundaria), y una trama PSMP (secundaria) y un correspondiente periodo son aludidos como una secuencia PSMP (secundaria). En otras palabras, la secuencia PSMP es inicializada mediante transmitir la trama PSMP, y la STA se activa solo en el periodo indicado por la trama PSMP en la secuencia PSMP que comienza con la trama PSMP minimizando por lo tanto el consumo de potencia.Although not illustrated, if there is another need of additional allocation of resources, in the transmission period 300 may additionally include more than one secondary MAP frame and an uplink period or a downlink period, depending on the secondary MAP frames. A transmission scheme which uses a MAP frame capable of accompanying one or more frames secondary, is referred to as a "Multi-Power Saving Interrogation (PSMP) "Multi-Phase, and MAP 310a frame and the secondary MAP frame 310b are referred to as a PSMP frame and a secondary PSMP frame, respectively. Both the PSMP plot as the secondary PSMP frame, are followed by at least a period of downlink or uplink indicated by the corresponding PSMP frame (secondary), and a PSMP frame (secondary) and a corresponding period are referred to as a PSMP sequence (secondary). In other words, the PSMP sequence is initialized by transmitting the PSMP frame, and the STA is activated only in the period indicated by the PSMP frame in the PSMP sequence which begins with the PSMP frame thus minimizing consumption of power

Un periodo de contención 316 que sigue a la duración de la última secuencia, puede ser accedido mediante al menos una STA sobre una base de contención.A containment period 316 that follows the duration of the last sequence, can be accessed by minus one STA on a containment basis.

Debe observarse que los elementos de las tramas MAP 310a y 310b mostradas en la figura 3, y sus ordenamientos están sujetos a cambios sin alejarse de la invención. Por ejemplo, cada una de las tramas MAP 310a y 310b incluye un campo ID de STA, campos de Duración y Desfase Temporal para la transmisión de enlace descendente, y campos de Duración y Desfase Temporal para la transmisión de enlace ascendente. En este caso, si no hay ningún periodo asignado en el enlace ascendente ni en el enlace descendente, un campo de Duración correspondiente se pone a Nulo (0). Además, cada una de las tramas MAP 310a y 310b puede incluir un campo para indicar si está seguida por otra trama MAP secundaria. La STA analiza el campo en la trama MAP secundaria, para determinar si la trama MAF secundaria es la última trama MAP secundaria en el periodo de trama de transmisión actual.It should be noted that the elements of the frames MAP 310a and 310b shown in Figure 3, and their arrangements are subject to change without departing from the invention. For example, each one of the MAP 310a and 310b frames includes an STA ID field, Duration and Time Offset fields for link transmission descending, and Duration and Time Offset fields for the uplink transmission. In this case, if there is no period assigned in the uplink or in the link descending, a corresponding Duration field is set to Null (0). In addition, each of the MAP 310a and 310b frames can include a field to indicate if it is followed by another secondary MAP frame. The STA analyzes the field in the secondary MAP frame, to determine if the secondary MAF frame is the last secondary MAP frame in the Current transmission frame period.

La figura 4 es un diagrama de sincronización, que ilustra un efecto de reducción de potencia de la asignación de recursos de fase de acuerdo con la presente invención.Figure 4 is a synchronization diagram, illustrating a power reduction effect of the assignment of phase resources in accordance with the present invention.

En referencia al diagrama (a) de la figura 4, un periodo de trama de transmisión 400 incluye una trama MAP 400A un periodo de enlace descendente 412, un primer periodo de enlace ascendente 414a, una trama MAP secundaria 410b y un segundo periodo de enlace ascendente. La trama MAP 410a indica la asignación de recursos de fase del periodo de enlace descendente 412 y el primer periodo de enlace ascendente 414a.Referring to the diagram (a) of Figure 4, a Transmission frame period 400 includes a MAP 400A frame a downlink period 412, a first link period ascending 414a, a secondary MAP frame 410b and a second period uplink. The MAP 410a frame indicates the assignment of phase resources of the 412 downlink period and the first uplink period 414a.

El diagrama (b) de la figura 4 muestra un escenario en el que los recursos del primer periodo de enlace ascendente 414a asignados por la trama MAP 410a, son suficientes para transmitir datos y mensajes de control deseados por h STA. Es decir, tras conmutar al modo de espera después de recibir la trama MAP 410a en un periodo 420, la STA se activa en un periodo asignado 422 en el periodo de enlace descendente 412 indicado por la trama MAP 410a, y recibe datos desde la AP. Después de conmutar de nuevo al modo de espera tras la expiración del periodo 422, la STA mantiene el modo de espera hasta un periodo asignado 424 en el primer periodo de enlace ascendente 414; indicado por la trama MAP 410a. En el periodo 424, la STA transmite datos y/o mensajes de control al AP. Aquí, sin la necesidad de asignación adicional de recursos, la STA mantiene el modo de espera hasta que recibe una trama MAP del siguiente periodo de trama de transmisión, sin monitorizar la recepción de la trama MAP secundaria 410b.The diagram (b) of Figure 4 shows a scenario in which the resources of the first uplink period 414a allocated by the MAP frame 410a are sufficient to transmit data and control messages desired by h STA. That is, after switching to the standby mode after receiving the MAP 410a frame in a 420 period, the STA is activated in an assigned period 422 in the downlink period 412 indicated by the MAP 410a frame, and receives data from the AP . After switching back to standby mode after the expiration of the period 422, the STA maintains the standby mode up to an assigned period 424 in the first uplink period 414; indicated by the MAP 410a frame. In period 424, the STA transmits data and / or control messages to the AP. Here, without the need for additional allocation of resources, the STA maintains the standby mode until it receives a MAP frame of the next transmission frame period, without monitoring the reception of the secondary MAP frame 410b.

El diagrama (c) de la figura 4 muestra un escenario en el que, tras la expiración del primer periodo de enlace ascendente 414a asignado mediante las tramas MAP 410a, se requiere la asignación adicional de recursos para la STA. Es decir, después de conmutar al modo de espera tras la recepción de la trama MAP 410a en el periodo 430 la STA se activa en un periodo asignado 432 en el periodo de enlace descendente 412 indicado por la trama MAP 412a, y recibe datos desde el AP. Después de conmutar de vuelta al modo de espera tras la expiración del periodo 432, la STA mantiene el modo de espera hasta un periodo asignado 434 en el primer periodo de enlace ascendente 414a indicado por la trama MAP 410a. En el periodo 434, la STA transmite datos al AP. Aquí, a medida que necesite asignación adicional de recursos, la STA se activa de nuevo en un periodo 436 y monitoriza la recepción de la trama MAP secundaria 410b. Tras la recepción de la trama MAP secundaria 410 la STA conmuta de vuelta al modo de espera, y aguarda hasta el periodo 438 en un segundo periodo de enlace ascendente 414b indicado por la trama MAP secundaria 410b. En el periodo 438, la STA transmite datos al AP. Aunque no se ilustra, hay un posible periodo asignado, mapeado a una o más tramas MAP adicionales, antes de la expiración del periodo de trama de transmisión 400.The diagram (c) of Figure 4 shows a scenario in which, after the expiration of the first link period  ascending 414a assigned by MAP 410a frames, required the additional allocation of resources for the STA. That is, after Switch to standby mode after reception of MAP 410a frame in period 430 the STA is activated in an assigned period 432 in the downlink period 412 indicated by the MAP 412a frame, and Receive data from the AP. After switching back to the mode of waiting after the expiration of period 432, the STA maintains the mode Waiting until an assigned period 434 in the first period of uplink 414a indicated by the MAP 410a frame. At period 434, the STA transmits data to the AP. Here, as need additional allocation of resources, the STA is activated again in a 436 period and monitors the reception of the MAP frame secondary 410b. Upon receipt of the secondary MAP frame 410 the STA switches back to standby mode, and waits until the period 438 in a second uplink period 414b indicated by the secondary MAP frame 410b. In period 438, the STA transmits data to P. Although not illustrated, there is a possible assigned period, mapped to one or more additional MAP frames, before expiration of the transmission frame period 400.

Como puede comprenderse a partir de la descripción anterior, incluso aunque la cantidad de recursos estimados por el AP no sea precisa, la presente invención minimiza el gasto de recursos y la reducción en el caudal de procese y transferencia de datos, y maximiza el tiempo en el que la STA mantiene el modo de espera sin monitorizar innecesariamente el enlace descendente ni el enlace ascendente, reduciendo el consumo de potencia de la STA. Además, la presente invención puede llevar a cabo asignación adicional de recursos, requerida por la STA en el periodo de trama actual, sin posponer la asignación adicional de recursos hasta el siguiente periodo de trama de transmisión.As can be understood from the previous description, even though the amount of resources Estimated by the AP is not accurate, the present invention minimizes the expenditure of resources and the reduction in the flow of process and data transfer, and maximizes the time in which the STA maintains standby mode without unnecessarily monitoring the downlink or uplink, reducing the consumption of STA power. In addition, the present invention can lead to additional allocation of resources required by the STA in the current frame period, without postponing the additional allocation of resources until the next transmission frame period.

Si bien la invención se ha mostrado y descrito con referencia a cierta realización preferida de la misma, las personas especialistas en la técnica comprenderán que pueden realizarse diversos cambios en la forma y los detalles, sin alejarse de la invención tal como se define mediante las reivindicaciones adjuntas.While the invention has been shown and described with reference to a certain preferred embodiment thereof, the people skilled in the art will understand that they can various changes to form and details be made, without move away from the invention as defined by the attached claims.

Claims (10)

         \global\parskip0.900000\baselineskip\ global \ parskip0.900000 \ baselineskip
1. Un método para recibir un periodo de transmisión asignado en un periodo de trama (300; 400) en un sistema de red inalámbrico, teniendo dicho periodo de trama una duración periódica prefijada, comprendiendo el método las etapas de:1. A method to receive a period of transmission assigned in a frame period (300; 400) in a system  of wireless network, said frame period having a duration preset periodical, the method comprising the steps of: recibir una trama de multi-interrogación de ahorro de potencia PSMP (310a; 410a), proporcionando un periodo de enlace descendente y un periodo de enlace ascendente mediante un punto de acceso, AP;receive a plot of PSMP power-saving multi-interrogation (310a; 410a), providing a downlink period and a uplink period through an access point, AP; recibir datos desde el AP en el periodo de enlace descendente proporcionado por la trama PSMP (310a; 410a) y transmitir datos al AP en el periodo de enlace ascendente proporcionado por la trama PSMP (310a; 410a);receive data from the AP in the period of downlink provided by the PSMP frame (310a; 410a) and transmit data to the AP in the uplink period provided by the PSMP frame (310a; 410a); tras la expiración de los periodos de enlace descendente y ascendente proporcionados por la trama PSMP (310a; 410a), recibir en el periodo de trama al menos una trama PSMP secundaria (310b; 410b), proporcionando al menos uno de un periodo adicional de enlace descendente y un periodo adicional de enlace ascendente; en el que la trama PSMP secundaria (310b; 410b) es una trama PSMP adicional que sigue a la trama PSMP (310a; 410a) en el mencionado periodo de trama (300; 400); yafter the expiration of the link periods descending and ascending provided by the PSMP frame (310a; 410a), receive at least one PSMP frame in the frame period secondary (310b; 410b), providing at least one of a period additional downlink and an additional link period upward; in which the secondary PSMP frame (310b; 410b) is a additional PSMP frame that follows the PSMP frame (310a; 410a) in the mentioned frame period (300; 400); Y recibir datos en el periodo adicional de enlace descendente proporcionados por la trama PSMP secundaria (310b; 410b) si hay datos adicionales que recibir, y transmitir datos en el periodo adicional de enlace ascendente proporcionado por la trama PSMP secundaria (310b; 410b), si hay datos adicionales a transmitir.receive data in the additional link period descending provided by the secondary PSMP frame (310b; 410b) if there is additional data to receive, and transmit data in the additional uplink period provided by the frame Secondary PSMP (310b; 410b), if there is additional data to to transmit. 2. El método de la reivindicación 1, en el que la trama PSMP (310a; 410a) comprende:2. The method of claim 1, wherein The PSMP frame (310a; 410a) comprises: un identificador ID (340, 344a) de una estación, STA;an ID identifier (340, 344a) of a station, STA; un desfase inicial (342, 346a) que indica un punto de inicio de los periodos de enlace descendente y enlace ascendente proporcionados por la trama PSMP; yan initial offset (342, 346a) indicating a starting point of the downlink and link periods ascending provided by the PSMP frame; Y un campo de duración (343, 348a) que indica una duración de los periodos de enlace descendente y enlace ascendente, proporcionados por la trama PSMP.a duration field (343, 348a) indicating a duration of the downlink and uplink periods, provided by the PSMP frame. 3. El método de la reivindicación 1, en el que el periodo de enlace descendente proporcionado por la trama PSMP (310a; 410a) se proporciona de acuerdo con una velocidad de datos requerida.3. The method of claim 1, wherein the downlink period provided by the PSMP frame (310a; 410a) is provided according to a data rate required 4. El método de la reivindicación 1, en el que cada trama PSMP secundaria (310b; 410b) comprende:4. The method of claim 1, wherein Each secondary PSMP frame (310b; 410b) comprises: un ID (344b) de una estación, STA;an ID (344b) of a station, STA; un desfase inicial (346b) que indica un punto de inicio de cada periodo adicional proporcionado por la trama PSMP secundaria; yan initial offset (346b) indicating a point of start of each additional period provided by the PSMP frame high school; Y un campo de duración (348b) que indica una longitud de cada periodo adicional proporcionado por la trama PSMP secundaria.a duration field (348b) indicating a length of each additional period provided by the PSMP frame high school. 5. El método de la reivindicación 1, en el que todos los periodos indicados por la trama PSMP (310a; 410a) en la totalidad de los periodos indicados por la, al menos una, trama PSMP secundaria (310b; 410b), están incluidos en un periodo de trama de transmisión que tiene una duración fija.5. The method of claim 1, wherein all periods indicated by the PSMP frame (310a; 410a) in the all periods indicated by the at least one PSMP frame secondary (310b; 410b), are included in a frame period of transmission that has a fixed duration. 6. Un aparato de estación STA, para recibir un periodo de transmisión asignado en un periodo de trama (300; 400) en un sistema de red inalámbrico, teniendo dicho periodo de trama una duración periódica predeterminada, comprendiendo el aparato:6. A STA station apparatus, to receive a transmission period assigned in a frame period (300; 400) in a wireless network system, said frame period having a predetermined periodic duration, comprising the apparatus: un procesador para analizar una trama de multi-interrogación de ahorro de potencia PSMP (310a; 410a), proporcionando un periodo de enlace descendente y un periodo de enlace ascendente mediante un punto de acceso, AP, y tras la expiración de los periodos de enlace descendente y enlace ascendente proporcionados por la trama PSMP (310a; 410a), recibir en el periodo de trama al menos una trama PSMP secundaria (310b; 410b) proporcionando al menos uno entre un periodo adicional de enlace descendente y un periodo adicional de enlace ascendente, en el que la trama secundaria PSMP (310b; 410b) es una trama PSMP adicional que sigue a la trama PSMP (310a; 410a) en el periodo de trama (300; 400); ya processor to analyze a plot of PSMP power-saving multi-interrogation (310a; 410a), providing a downlink period and a uplink period via an access point, AP, and after  the expiration of the downlink and link periods upstream provided by the PSMP frame (310a; 410a), receive in the frame period at least one secondary PSMP frame (310b; 410b) providing at least one between an additional period of downlink and an additional uplink period, in which the secondary PSMP frame (310b; 410b) is a PSMP frame additional following the PSMP frame (310a; 410a) in the period of frame (300; 400); Y un transceptor para recibir desde el AP la trama PSMP (310a; 410a) y la trama secundaria (310b; 410b), suministrando al procesador la trama PSMP (310a; 410a) y la trama secundaria (310b; 410b) recibidas, recibiendo datos del AP en el periodo de enlace descendente proporcionado por la trama PSMP (310a; 410a) y transmitir datos al AP en el periodo de enlace ascendente proporcionado por la trama PSMP (310a; 410a), y recibir datos en el periodo adicional de enlace descendente proporcionados por la trama PSMP secundaria (310b; 410b), si hay datos adicionales a recibir, y transmitir datos en el periodo adicional de enlace ascendente proporcionados por la trama PSMP secundaria (310b; 410b), si hay datos adicionales a transmitir.a transceiver to receive the frame from the AP PSMP (310a; 410a) and secondary frame (310b; 410b), providing to the processor the PSMP frame (310a; 410a) and the secondary frame (310b; 410b) received, receiving data from the AP in the period of downlink provided by the PSMP frame (310a; 410a) and transmit data to the AP in the uplink period provided by the PSMP frame (310a; 410a), and receive data in the additional downlink period provided by the frame Secondary PSMP (310b; 410b), if there is additional data to be received, and transmit data in the additional uplink period provided by the secondary PSMP frame (310b; 410b), if there is additional data to transmit. 
         \global\parskip1.000000\baselineskip\ global \ parskip1.000000 \ baselineskip
7. El aparato de STA de la reivindicación 6, en el que la trama PSMP (310a; 410a) comprende:7. The STA apparatus of claim 6, in which the PSMP frame (310a; 410a) comprises: un identificador ID (340, 344a) del aparado de STA;an identifier ID (340, 344a) of the device STA; un desfase inicial (342, 346a) que indica un punto de inicio de los periodos de enlace descendente y enlace ascendente, proporcionados mediante la trama PSMP; yan initial offset (342, 346a) indicating a starting point of the downlink and link periods ascending, provided by the PSMP frame; Y un campo de duración (343, 348a) que indica una duración de los periodos de enlace descendente y de enlace ascendente proporcionados por la trama PSMP.a duration field (343, 348a) indicating a duration of downlink and link periods ascending provided by the PSMP frame. 8. El aparato de STA de la reivindicación 6, en el que el periodo de enlace descendente proporcionado por la trama PSMP (310a; 410a) se asigna de acuerdo con una velocidad de datos requerida.8. The STA apparatus of claim 6, in the one that the downlink period provided by the frame PSMP (310a; 410a) is assigned according to a data rate required 9. El aparato de STA de la reivindicación 6, en el que cada trama PSMP secundaria (310b; 410b) comprende:9. The STA apparatus of claim 6, in which each secondary PSMP frame (310b; 410b) comprises: un identificador ID (344b) del aparato de STA;an identifier ID (344b) of the apparatus of STA; un desfase inicial (346b) que indica un punto de inicio de cada periodo proporcionado por la trama PSMP secundaria; yan initial offset (346b) indicating a point of start of each period provided by the secondary PSMP frame; Y un campo de duración (348b) que indica una duración de cada periodo proporcionado por la trama PSMP secundaria.a duration field (348b) indicating a duration of each period provided by the PSMP frame high school. 10. El aparato de STA de la reivindicación 6, en el que la totalidad de los periodos indicados por la trama PSMP (310a; 410a) y la totalidad de los periodos indicados por la, al menos una, trama PSMP secundaria (310b; 410b) están incluidos en un periodo de trama de transmisión que tiene una longitud fija.10. The STA apparatus of claim 6, in which the totality of the periods indicated by the PSMP frame (310a; 410a) and all the periods indicated by the minus one, secondary PSMP frame (310b; 410b) are included in a transmission frame period that has a fixed length.
ES07020442T 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM AND CORRESPONDING SYSTEM. Active ES2326194T3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US72791505P 2005-10-18 2005-10-18
US727915P 2005-10-18
US73092405P 2005-10-27 2005-10-27
US730924P 2005-10-27
KR10-2006-0051604 2006-06-08
KR1020060051604A KR100615139B1 (en) 2005-10-18 2006-06-08 Method and apparatus for allocating transmission period in wireless telecommunication system and therefor system

Publications (1)

Publication Number Publication Date
ES2326194T3 true ES2326194T3 (en) 2009-10-02

Family

ID=37174137

Family Applications (6)

Application Number Title Priority Date Filing Date
ES06021868T Active ES2306341T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM.
ES06021867T Active ES2308640T3 (en) 2005-10-18 2006-10-18 METHOD AND APPARATUS FOR THE ALLOCATION OF THE TRANSMISSION PERIOD IN A WIRELESS COMMUNICATIONS SYSTEM, AND SYSTEM FOR THE SAME.
ES07020167T Active ES2326288T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRE-FREE COMMUNICATION SYSTEM.
ES07020437T Active ES2326094T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE FOR THE ALLOCATION OF THE TRANSMISSION PERIOD IN A WIRELESS COMMUNICATIONS SYSTEM.
ES07020442T Active ES2326194T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM AND CORRESPONDING SYSTEM.
ES06021869T Active ES2308641T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRE-FREE COMMUNICATION SYSTEM, AND A SYSTEM FOR THE SAME.

Family Applications Before (4)

Application Number Title Priority Date Filing Date
ES06021868T Active ES2306341T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM.
ES06021867T Active ES2308640T3 (en) 2005-10-18 2006-10-18 METHOD AND APPARATUS FOR THE ALLOCATION OF THE TRANSMISSION PERIOD IN A WIRELESS COMMUNICATIONS SYSTEM, AND SYSTEM FOR THE SAME.
ES07020167T Active ES2326288T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRE-FREE COMMUNICATION SYSTEM.
ES07020437T Active ES2326094T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE FOR THE ALLOCATION OF THE TRANSMISSION PERIOD IN A WIRELESS COMMUNICATIONS SYSTEM.

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES06021869T Active ES2308641T3 (en) 2005-10-18 2006-10-18 METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRE-FREE COMMUNICATION SYSTEM, AND A SYSTEM FOR THE SAME.

Country Status (7)

Country Link
US (15) US7688831B2 (en)
EP (6) EP1873974B1 (en)
JP (3) JP4704470B2 (en)
KR (7) KR100615139B1 (en)
AT (6) ATE432572T1 (en)
ES (6) ES2306341T3 (en)
WO (3) WO2007046618A1 (en)

Families Citing this family (147)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1889439B1 (en) * 2005-06-07 2019-02-27 Telefonaktiebolaget LM Ericsson (publ) Communication path allocating entity and method
KR100615139B1 (en) * 2005-10-18 2006-08-22 삼성전자주식회사 Method and apparatus for allocating transmission period in wireless telecommunication system and therefor system
WO2007045101A2 (en) * 2005-10-21 2007-04-26 Nortel Networks Limited Multiplexing schemes for ofdma
KR101075777B1 (en) * 2006-02-14 2011-10-24 한국과학기술원 System and method for transmitting and receiving resource allocation information in a wireless communication system
KR100713313B1 (en) * 2006-02-22 2007-05-04 삼성전자주식회사 The system for data transceiving in a mobile communication system and thereof data received method
US7813307B2 (en) * 2006-03-06 2010-10-12 Nokia Corporation Power save in IBSS mode of WLAN operation
US8477673B2 (en) * 2006-06-09 2013-07-02 Qualcomm Incorporated Cell specific retransmission of single frequency network MBMS data
US9265028B2 (en) * 2006-06-09 2016-02-16 Qualcomm Incorporated Multicast/broadcast reporting for wireless networks
US20070291711A1 (en) * 2006-06-14 2007-12-20 Ibahn General Holdings Corporation Techniques for wireless deployment
US7760694B2 (en) * 2006-07-19 2010-07-20 Intel Corporation Deviating from a transmission map to communicate in a wireless network
GB2440982A (en) * 2006-08-18 2008-02-20 Fujitsu Ltd Wireless multi-hop communication system
EP2070214B1 (en) * 2006-09-19 2014-12-31 ZTE (USA) Inc. Frame structure for multi-hop relay in wireless communication systems
US8155139B2 (en) * 2006-11-07 2012-04-10 Conexant Systems, Inc. Systems and methods for management of wireless clients
EP2115927A1 (en) * 2007-02-05 2009-11-11 Nokia Corporation Method and apparatus for providing acknowledgment signaling
US20080192622A1 (en) * 2007-02-09 2008-08-14 Comsys Communication & Signal Processing Ltd. Control channel signaling in a multiple access wireless communication system
US8437286B2 (en) 2007-02-22 2013-05-07 Zte (Usa) Inc. Signaling for multi-hop relay in wireless communication systems
EP2127244B1 (en) * 2007-03-19 2020-04-22 Nokia Technologies Oy Techniques for improved error detection in a wireless communication system
WO2008133565A2 (en) 2007-04-27 2008-11-06 Telefonaktiebolaget Lm Ericsson (Publ) A method and a device for saving power in a wireless user terminal
US20080267168A1 (en) * 2007-04-27 2008-10-30 Zhijun Cai Slow Adaptation of Modulation and Coding for Packet Transmission
US8064390B2 (en) 2007-04-27 2011-11-22 Research In Motion Limited Uplink scheduling and resource allocation with fast indication
US8331947B2 (en) 2007-06-15 2012-12-11 Samsung Electronics Co., Ltd. Method and apparatus for allocating and acquiring ACK/NACK resources in a mobile communication system
US8432818B2 (en) * 2007-06-15 2013-04-30 Research In Motion Limited System and method for link adaptation overhead reduction
EP2163056A4 (en) * 2007-06-15 2011-12-14 Research In Motion Ltd System and method for large packet delivery during semi persistently allocated session
MX336172B (en) * 2007-06-15 2016-01-06 Blackberry Ltd System and method for semi-persistent and dynamic scheduling and discontinuous reception control.
US20080310391A1 (en) * 2007-06-17 2008-12-18 Texas Instruments Incorporated Apparatus for and method of power save traffic control in client/server networks
WO2008155734A2 (en) 2007-06-18 2008-12-24 Nokia Corporation Method and apparatus for providing timing alignment
KR101504764B1 (en) * 2007-06-20 2015-03-20 삼성전자주식회사 Apparatus and method for discontinuous reception in mobile telecommunication system
JP4698755B2 (en) * 2007-06-27 2011-06-08 富士通株式会社 Information access system, contactless read / write device, and contactless information storage device
KR20090003086A (en) * 2007-06-28 2009-01-09 엘지전자 주식회사 Method for transmitting signals, method for allocating resource and method for constructing uplink map for the same
US8340029B2 (en) 2007-07-06 2012-12-25 Zte (Usa) Inc. Resource allocation in wireless multi-hop relay networks
KR101007026B1 (en) * 2007-07-19 2011-01-12 삼성전자주식회사 Apparatus and method for circuit mode resource allocation in broadband wireless access system
JP2009044581A (en) * 2007-08-10 2009-02-26 Fujitsu Ltd Communication device, transmission method, and reception method
US20090046639A1 (en) * 2007-08-14 2009-02-19 Zhijun Cai System and Method for Handling Large IP Packets During VoIP Session
ES2907561T3 (en) * 2007-08-20 2022-04-25 Blackberry Ltd System and method for DRX and NACK/ACK control
EP2413637B1 (en) * 2007-09-14 2013-01-23 Research In Motion Limited System and Method for Discontinuous Reception Control Start Time
KR101433940B1 (en) * 2007-09-18 2014-08-26 삼성전자주식회사 Feedback method and apparatus for multicast service in wireless communication system
KR20090030562A (en) * 2007-09-20 2009-03-25 엘지전자 주식회사 Method of packet transmission for resource allocation in broadband wireless access system
US20100008332A1 (en) * 2008-07-09 2010-01-14 Krishna Balachandran Method for half-and full-duplex subscriber station operation in frequency division duplex systems
EP2728960A1 (en) * 2007-09-28 2014-05-07 Fujitsu Limited Wireless resource allocation in wireless communication system based on service quality information transmitted with wireless resource allocation request
KR100932264B1 (en) * 2007-10-04 2009-12-16 한국전자통신연구원 Method and apparatus for scheduling uplink traffic transmission based on feedback message
US8244265B2 (en) 2007-11-28 2012-08-14 Motorola Mobility Llc Techniques for aligning application output and uplink resource allocation in wireless communication systems
TWI383636B (en) * 2007-12-03 2013-01-21 Inst Information Industry Bandwidth recovery method for communication system
KR100921022B1 (en) * 2007-12-17 2009-10-09 한국전자통신연구원 MAC Protocol and Data Transmission using the MAC Protocol in Wireless Local Area Network
KR20090078715A (en) * 2008-01-15 2009-07-20 엘지전자 주식회사 Method of communication using sub-map
KR20090078723A (en) 2008-01-15 2009-07-20 삼성전자주식회사 Method for transmitting and receiving signal based on hybrid automatic repeat request scheme in wireless mobile communication system
GB2490607B (en) * 2008-01-24 2013-03-20 Firetide Inc Channel assignment for wireless access networks
KR101570350B1 (en) * 2008-02-22 2015-11-19 엘지전자 주식회사 Method for allocating dynamic Transmit Time Interval
KR20090093735A (en) * 2008-02-29 2009-09-02 엘지전자 주식회사 Method of allocating Uplink resource region
USRE47328E1 (en) * 2008-03-02 2019-03-26 Lg Electronics Inc. Method for transmitting and receiving system information elements in a wireless access system
US8004992B2 (en) * 2008-03-03 2011-08-23 Qualcomm Incorporated Adding hybrid ARQ to WLAN protocols with MAC based feedback
US10771199B2 (en) 2008-04-02 2020-09-08 Qualcomm Incorporated Methods and apparatus for reverse link acknowledgement in a wireless local area network (WLAN)
US9450711B2 (en) * 2008-04-02 2016-09-20 Qualcomm Incorporated Method and apparatus for extended reverse direction grant in a wireless local area network (WLAN)
US9203560B2 (en) 2008-04-04 2015-12-01 Qualcomm Incorporated Methods and apparatus for delayed block acknowledgement in a wireless local area network (WLAN)
WO2009130280A2 (en) * 2008-04-23 2009-10-29 Nokia Siemens Networks Oy Flexible map coding for wireless networks
US8331272B2 (en) * 2008-04-29 2012-12-11 Telefonaktiebolaget L M Ericsson (Publ) Aggregation of resources over multiple frames in a TDD communication system
KR101461238B1 (en) * 2008-04-30 2014-11-12 삼성전자주식회사 Apparatus and method for controlling hybrid automatic repeat request scheme in wireless mobile communication system
US8452351B2 (en) * 2008-06-02 2013-05-28 Qualcomm Incorporated Methods and apparatus for saving battery power in mobile stations
US8514792B2 (en) * 2008-06-13 2013-08-20 Samsung Electronics Co., Ltd. Mobile station, base station, and method for uplink service
TWI395976B (en) * 2008-06-13 2013-05-11 Teco Image Sys Co Ltd Light projection device of scanner module and light arrangement method thereof
US8335179B2 (en) * 2008-07-15 2012-12-18 Panasonic Corporation Control device, terminal device, and communication system and communication method, using the same
KR101536773B1 (en) * 2008-07-31 2015-07-16 엘지전자 주식회사 Procedure for power save multi-poll(PSMP) in a very high throughput(VHT) wireless local access network system, PSMP frame format for the procedure, and station supporting the procedure
JP5108683B2 (en) * 2008-08-26 2012-12-26 日本電信電話株式会社 Communication slot allocation method for communication system, communication system, base station, and terminal
US8310921B2 (en) 2008-09-04 2012-11-13 Lg Electronics Inc. Method of random access in a wireless system
KR20100089728A (en) 2009-02-03 2010-08-12 엘지전자 주식회사 Method of transmitting and receiving an acknowledgement in a wireless system
KR101036482B1 (en) 2009-02-03 2011-05-24 엘지전자 주식회사 Method of random access in a wireless system
US8194604B2 (en) 2008-09-08 2012-06-05 Motorola Mobility, Inc. Wireless local area network
CN101394668B (en) * 2008-10-24 2012-04-18 中兴通讯股份有限公司 Scheduling request signal sending method and device
US8223739B2 (en) 2008-10-29 2012-07-17 Intel Corporation Method and apparatus of dynamic bandwidth management
KR101450910B1 (en) * 2008-11-06 2014-10-14 삼성전자주식회사 Time slot allocation method for reduction of energy losses in wireless sensor network
US8582539B2 (en) * 2008-11-24 2013-11-12 Qualcomm Incorporated System and method to implement synchronous channel timing in a wireless communications network
CN101808362B (en) * 2009-02-13 2014-03-12 上海贝尔股份有限公司 Method and device for adjusting sleep mode of mobile station
WO2010095898A2 (en) * 2009-02-20 2010-08-26 엘지전자 주식회사 Communication method for femto base station
US8553547B2 (en) * 2009-03-30 2013-10-08 Broadcom Corporation Systems and methods for retransmitting packets over a network of communication channels
US8837352B2 (en) 2009-04-07 2014-09-16 Lg Electronics Inc. Method for allocating resources in a broadband wireless access system
KR101638899B1 (en) 2009-04-08 2016-07-12 엘지전자 주식회사 Method of transmitting and receiving an acknowledgement in a wireless system
KR101498067B1 (en) * 2009-04-14 2015-03-03 엘지전자 주식회사 Method of transmitting receiving a data in a wireless communication system
WO2010146625A1 (en) * 2009-06-16 2010-12-23 株式会社 東芝 Communication apparatus
KR101757296B1 (en) * 2009-08-18 2017-07-13 엘지전자 주식회사 The apparatus and method for performing HARQ procedure
US9344312B2 (en) * 2009-08-26 2016-05-17 Lg Electronics Inc. Method and apparatus for multiple frame transmission for supporting MU-MIMO
US8817698B2 (en) * 2009-10-18 2014-08-26 Intel Corporation Device, system and method of selectively aborting reception of wireless communication packets
EP2507929B1 (en) * 2009-12-02 2022-08-10 Marvell Asia Pte, Ltd. Method and apparatus for sounding multiple stations
KR20110063276A (en) 2009-12-03 2011-06-10 엘지전자 주식회사 Apparatus and method for allocation persistent resource in a broadband wireless communication system
US8886755B1 (en) 2009-12-09 2014-11-11 Marvell International Ltd. Method and apparatus for facilitating simultaneous transmission from multiple stations
US8542696B2 (en) 2009-12-16 2013-09-24 Intel Corporation Device, system and method of simultaneously communicating with a group of wireless communication units
US20110149731A1 (en) 2009-12-17 2011-06-23 Gong Michelle X Device, system and method of scheduling communications with a group of wireless communication units
IL203053A (en) * 2009-12-31 2017-01-31 Alvarion Ltd Method and apparatus for transmitting wireless communications
US9084144B2 (en) 2010-02-02 2015-07-14 Marvell World Trade Ltd. Power saving features in a communication device
US20110200130A1 (en) * 2010-02-11 2011-08-18 Electronics And Telecommunications Research Institute Method and apparatus for transmitting/receiving data in mu-mimo system
ES2632552T3 (en) * 2010-05-26 2017-09-14 Lg Electronics Inc. Procedure and apparatus for transmitting and receiving data in a wireless LAN system
WO2011149271A2 (en) * 2010-05-26 2011-12-01 엘지전자 주식회사 Method and apparatus for operating a power save mode in a wireless lan system
JP5574855B2 (en) * 2010-07-02 2014-08-20 三菱電機株式会社 Wireless communication system, wireless base station, wireless terminal station, and wireless communication method
EP2427001B1 (en) * 2010-09-07 2013-11-06 Telefonaktiebolaget L M Ericsson (Publ) Controlling an uplink data transmission of a communication device
WO2012033877A1 (en) * 2010-09-08 2012-03-15 Mediatek Singapore Pte. Ltd. Psmp-based downlink multi-user mimo communications
CN102469561B (en) * 2010-11-16 2015-01-07 北京中电华大电子设计有限责任公司 Method for realizing 802.11n low power consumption
KR101762699B1 (en) * 2011-01-25 2017-07-28 삼성전자주식회사 Transmitting device, receiving device and communication method thereof
US8416799B2 (en) * 2011-05-05 2013-04-09 Hitachi, Ltd. Systems, methods and apparatuses for wireless communication
JP5918497B2 (en) * 2011-10-11 2016-05-18 株式会社Ｎｔｔドコモ Radio communication system, radio base station apparatus, machine communication terminal, and radio communication method
KR101979724B1 (en) * 2011-10-26 2019-05-17 한국전자통신연구원 Apparatus and method for transmitting/receiving data in communication system
US8755403B2 (en) * 2011-11-09 2014-06-17 Hitachi, Ltd. Block acknowledgement for wireless communication methods, apparatuses and systems
WO2013077653A1 (en) * 2011-11-23 2013-05-30 엘지전자 주식회사 Method for transceiving data on basis of service period scheduling in wireless lan system and apparatus for supporting same
KR101951358B1 (en) 2011-12-15 2019-02-22 삼성전자주식회사 Wireless power transmitter, wireless power receiver and method for controlling each thereof
CN103379076B (en) * 2012-04-27 2016-09-28 电信科学技术研究院 A kind of carry out the method for uplink, system and equipment
WO2013187653A1 (en) * 2012-06-13 2013-12-19 Kt Corporation Method of accessing channel in wireless local area network system
KR101553856B1 (en) 2012-06-13 2015-09-17 주식회사 케이티 Method for channel access in wireless local area network system
CN108617002B (en) * 2012-06-19 2021-12-07 韩国电子通信研究院 Time slot-based channel access control device and method for wireless local area network system
CN103517419B (en) * 2012-06-20 2017-08-25 华为终端有限公司 Notify method, method for transmitting uplink data and the equipment of the channel use time of upstream data transmission
WO2014010945A1 (en) 2012-07-10 2014-01-16 한국전자통신연구원 Method and apparatus for allocating flexible transmission slot in wireless lan system
KR102107677B1 (en) * 2012-07-10 2020-05-07 한국전자통신연구원 Method and apparatus for flexible transmission slot allocation in wireless lan system
US8953634B2 (en) 2012-09-04 2015-02-10 Intel Corporation Device, system and method of communicating data during an allocated time period
US8706155B1 (en) * 2012-10-02 2014-04-22 Google Inc. Transmission protocol modification to maximize mobile device battery life
US9414311B2 (en) * 2012-10-30 2016-08-09 Qualcomm Incorporated Systems and methods for power savings in wireless communications
US9973879B2 (en) 2012-11-26 2018-05-15 Qualcomm Incorporated Opportunistic decoding of transmissions on a forward link in a machine-to-machine wireless wide area network
US20140169291A1 (en) * 2012-12-12 2014-06-19 Qualcomm Incorporated System and method for improved communication on a wireless network
KR102029324B1 (en) * 2012-12-14 2019-10-07 삼성전자주식회사 Apparatus and method for transmitting and receiving acknowledgement signal in wireless communication system
US20140241272A1 (en) * 2013-02-25 2014-08-28 Qualcomm Incorporated Interface between low power node and macro cell to enable decoupled uplink and downlink communication
CN104039013B (en) * 2013-03-06 2019-05-17 中兴通讯股份有限公司 Resource allocation information processing method and processing device
EP2979488B1 (en) * 2013-03-25 2018-07-11 Telefonaktiebolaget LM Ericsson (publ) Method for initiating handover, wireless device and base station
CN104185296B (en) 2013-05-20 2018-02-06 华为技术有限公司 Channel access method and access point
US9681418B2 (en) * 2013-09-27 2017-06-13 Apple Inc. Wireless multicast communication
US9825678B2 (en) 2013-11-26 2017-11-21 Marvell World Trade Ltd. Uplink multi-user multiple input multiple output for wireless local area network
WO2015081269A1 (en) 2013-11-27 2015-06-04 Marvell Semiconductor, Inc. Sounding and tone block allocation for orthogonal frequency division multiple access (ofdma) in wireless local area networks
US9166660B2 (en) 2013-11-27 2015-10-20 Marvell World Trade Ltd. Uplink multi-user multiple input multiple output beamforming
WO2015122670A1 (en) * 2014-02-11 2015-08-20 엘지전자 주식회사 Method for transmitting and receiving data in wireless lan system supporting downlink frame transmission interval, and device for same
WO2015127616A1 (en) 2014-02-27 2015-09-03 华为技术有限公司 Wireless local area network data transmission method and device
EP3138226B1 (en) 2014-05-02 2020-07-08 NXP USA, Inc. Multiple user allocation signaling in a wireless communication network
US20160014803A1 (en) * 2014-07-09 2016-01-14 Qualcomm Incorporated Systems and methods for traffic information signaling in a wireless communications network
US9729214B2 (en) * 2014-07-24 2017-08-08 Marvell World Trade Ltd. Group acknowledgement for multiple user communication in a wireless local area network
KR101524411B1 (en) * 2014-09-01 2015-06-10 이화여자대학교 산학협력단 Method for sending data/ack message
US10219292B2 (en) 2014-10-24 2019-02-26 Qualcomm Incorporated Flexible multiplexing and feedback for variable transmission time intervals
EP3244676B1 (en) * 2015-02-02 2021-03-17 Huawei Technologies Co., Ltd. Resource indication method and device
US10624119B2 (en) 2015-04-08 2020-04-14 Qualcomm Incorporated Transmission scheduling for contention based carrier
CN106341898B (en) * 2015-07-09 2020-07-07 中兴通讯股份有限公司 Multi-site transmission indication, triggering and execution method and device
US11082888B2 (en) 2015-10-20 2021-08-03 Nxp Usa, Inc. Single acknowledgment policy for aggregate MPDU
WO2017070393A1 (en) 2015-10-20 2017-04-27 Marvell World Trade Ltd. Acknowledgment data unit for multiple uplink data units
US10554515B2 (en) * 2015-12-31 2020-02-04 Bright House Networks, Llc Customer premises network access device for displaying data usage
US10313923B2 (en) 2016-02-19 2019-06-04 Marvell World Trade Ltd. Acknowledgement of transmissions in a wireless local area network
US10873878B2 (en) * 2016-02-19 2020-12-22 Nxp Usa, Inc. Acknowledgement of transmissions in a wireless local area network
US10277376B2 (en) 2016-02-19 2019-04-30 Marvell World Trade Ltd. Acknowledgement of transmissions in a wireless local area network
RU2729409C2 (en) * 2016-03-02 2020-08-06 Сони Корпорейшн Information processing device, communication system, information processing method and program
DE102016212002B4 (en) * 2016-03-16 2018-05-09 Volkswagen Aktiengesellschaft A method for operating a mobile station, and relay radio station and mobile station for use in the method
CN107231392A (en) 2016-03-23 2017-10-03 阿里巴巴集团控股有限公司 Ask the method and device of remote service
WO2017200343A1 (en) * 2016-05-20 2017-11-23 엘지전자 주식회사 Robot cleaner
CN106059960B (en) * 2016-05-24 2019-06-04 北京交通大学 A kind of spatial network QoS assurance and administrative center based on software defined network
US10999792B2 (en) * 2017-03-15 2021-05-04 Avago Technologies International Sales Pte. Limited Low power high definition wireless media transport
US10165565B2 (en) * 2017-03-24 2018-12-25 Qualcomm Incorporated Legacy and new radio coexistence frame and control design
CN110959265B (en) * 2017-07-21 2023-07-25 株式会社Ntt都科摩 User terminal and wireless communication method
JP7047061B2 (en) * 2017-08-04 2022-04-04 エルジー エレクトロニクス インコーポレイティド Methods and devices for autonomous transmission

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5384777A (en) * 1993-04-19 1995-01-24 International Business Machines Corporation Adaptive medium access control scheme for wireless LAN
JP2967897B2 (en) * 1993-07-22 1999-10-25 エヌ・ティ・ティ移動通信網株式会社 Automatic retransmission request data transmission method
US6088590A (en) * 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
US5717689A (en) * 1995-10-10 1998-02-10 Lucent Technologies Inc. Data link layer protocol for transport of ATM cells over a wireless link
US6141336A (en) 1996-12-13 2000-10-31 International Business Machines Corporation Traffic scheduling method, system and article of manufacture for a wireless access to an asynchronous transfer mode network
US6694372B1 (en) 1997-06-17 2004-02-17 Advanced Micro Devices, Inc. Method and system for effective network communication of an unsupported media standard by encapsulated packet tagging
US6925068B1 (en) * 1999-05-21 2005-08-02 Wi-Lan, Inc. Method and apparatus for allocating bandwidth in a wireless communication system
US7245634B2 (en) * 2000-09-27 2007-07-17 Yen Robert C Wireless internet access with enhanced bandwidth capabilities
KR100360778B1 (en) * 1999-12-27 2002-11-13 한국전자통신연구원 Apparatus and method for MAC frame construction for OFDM based on wireless LAN
US7330877B2 (en) 2000-09-18 2008-02-12 Sharp Laboratories Of America Devices, softwares and methods for rescheduling multi-party sessions upon premature termination of session
US7251232B1 (en) * 2000-11-22 2007-07-31 Cisco Technology, Inc. Point-controlled contention arbitration in multiple access wireless LANs
JP3530141B2 (en) * 2001-03-06 2004-05-24 松下電器産業株式会社 Wireless LAN system and wireless LAN system signal collision avoidance method
KR100438823B1 (en) * 2001-08-14 2004-07-05 삼성전자주식회사 Wireless data communication system and method performing communication by a wireless transmission frame structure for elevating communicating efficiency
US7221681B2 (en) * 2001-11-13 2007-05-22 Koninklijke Philips Electronics N.V. Apparatus and method for providing IEEE 802.11e hybrid coordinator recovery and backoff rules
US6842461B2 (en) * 2002-03-08 2005-01-11 Motorola, Inc. Method and apparatus for data retransmission within a communication system
US7043477B2 (en) * 2002-10-16 2006-05-09 Microsoft Corporation Navigating media content via groups within a playlist
US7548531B2 (en) * 2002-12-16 2009-06-16 Avaya Inc. Poll scheduling for periodic traffic sources
US7142548B2 (en) * 2003-03-06 2006-11-28 Nortel Networks Limited Communicating in a reverse wireless link information relating to buffer status and data rate of a mobile station
US7801092B2 (en) * 2003-03-21 2010-09-21 Cisco Technology, Inc. Method for a simple 802.11e HCF implementation
US7245946B2 (en) * 2003-07-07 2007-07-17 Texas Instruments Incorporated Optimal power saving scheduler for 802.11e APSD
US7551948B2 (en) * 2003-07-24 2009-06-23 Cisco Technology, Inc. Uniform power save method for 802.11e stations
JP2005117579A (en) * 2003-10-10 2005-04-28 Fujitsu Ltd Radio transmitting apparatus, radio receiving apparatus, mobile communication system and radio resource control method
US8233462B2 (en) 2003-10-15 2012-07-31 Qualcomm Incorporated High speed media access control and direct link protocol
US6973052B2 (en) * 2003-12-19 2005-12-06 Motorola, Inc. Hybrid power save delivery method in a wireless local area network for real time communication
US7489688B2 (en) 2003-12-23 2009-02-10 Agere Systems Inc. Frame aggregation
US7420950B2 (en) * 2004-04-05 2008-09-02 Dspg Ltd. Multiplex communication with slotted retransmission on demand
JP4032257B2 (en) * 2004-06-28 2008-01-16 日本電気株式会社 Power saving method in wireless LAN, base station, terminal station, wireless LAN system
KR100706990B1 (en) * 2004-07-06 2007-04-11 에스케이 텔레콤주식회사 System for MAC Protocol Structure between Fixed Wireless Backhaul Systems and Fixed Wireless Backhaul Therefor
JP4494134B2 (en) * 2004-09-01 2010-06-30 Ｋｄｄｉ株式会社 Wireless communication system, relay station apparatus and base station apparatus
JP4331088B2 (en) * 2004-11-01 2009-09-16 株式会社東芝 Communication apparatus and communication method
US7599340B2 (en) * 2005-01-25 2009-10-06 Interdigital Technology Corporation Method and apparatus or eliminating interference caused by hidden nodes
US8306541B2 (en) * 2005-03-08 2012-11-06 Qualcomm Incorporated Data rate methods and apparatus
WO2006099588A2 (en) * 2005-03-14 2006-09-21 H-Stream Wireless Method and apparatus for operating a wireless pan network using an overlay protocol that enhances co-existence with a wireless lan network
US7873018B2 (en) 2005-06-16 2011-01-18 Nokia Corporation Scheduling data transmissions to improve power efficiency in a wireless network
US8600336B2 (en) * 2005-09-12 2013-12-03 Qualcomm Incorporated Scheduling with reverse direction grant in wireless communication systems
KR100615139B1 (en) * 2005-10-18 2006-08-22 삼성전자주식회사 Method and apparatus for allocating transmission period in wireless telecommunication system and therefor system
EP1952571A2 (en) * 2005-11-04 2008-08-06 Nokia Corporation Method, wireless local area network(wlan),node and apparatus for multicast and/or broadcast acknowledgements
US7796545B2 (en) * 2006-01-10 2010-09-14 Qualcomm Incorporated Method and apparatus for scheduling in a wireless communication network
US8081641B2 (en) * 2006-09-27 2011-12-20 Massachusetts Institute Of Technology Methods and apparatus for network coding

Also Published As

Publication number Publication date
US7668130B2 (en) 2010-02-23
ATE400115T1 (en) 2008-07-15
US7656832B2 (en) 2010-02-02
KR100678274B1 (en) 2007-02-02
WO2007046620A1 (en) 2007-04-26
US7688767B2 (en) 2010-03-30
US7688831B2 (en) 2010-03-30
EP1871041B1 (en) 2009-05-27
US7668131B2 (en) 2010-02-23
EP1873974B1 (en) 2009-05-27
US7688176B2 (en) 2010-03-30
EP1871041A2 (en) 2007-12-26
ATE432570T1 (en) 2009-06-15
EP1873974A3 (en) 2008-03-26
ES2306341T3 (en) 2008-11-01
ATE400114T1 (en) 2008-07-15
EP1873975B1 (en) 2009-05-27
KR20060097694A (en) 2006-09-14
US7706816B2 (en) 2010-04-27
US8068476B2 (en) 2011-11-29
US20070086418A1 (en) 2007-04-19
US7688768B2 (en) 2010-03-30
ATE432572T1 (en) 2009-06-15
KR20060083932A (en) 2006-07-21
US20070086404A1 (en) 2007-04-19
ES2326094T3 (en) 2009-09-30
WO2007046619A1 (en) 2007-04-26
JP2009512386A (en) 2009-03-19
KR20060097693A (en) 2006-09-14
US20070087724A1 (en) 2007-04-19
US20070086374A1 (en) 2007-04-19
WO2007046618A1 (en) 2007-04-26
EP1777879B1 (en) 2008-07-02
KR20070042442A (en) 2007-04-23
US7701888B2 (en) 2010-04-20
KR100689412B1 (en) 2007-03-08
ES2308640T3 (en) 2008-12-01
US7688769B2 (en) 2010-03-30
US20070097984A1 (en) 2007-05-03
KR101249079B1 (en) 2013-03-29
US7688770B2 (en) 2010-03-30
EP1777878B1 (en) 2008-07-02
ATE400942T1 (en) 2008-07-15
KR100615140B1 (en) 2006-08-22
US7660274B2 (en) 2010-02-09
EP1777878A1 (en) 2007-04-25
US7701889B2 (en) 2010-04-20
US20070115971A1 (en) 2007-05-24
US20070086370A1 (en) 2007-04-19
EP1873975A2 (en) 2008-01-02
JP4704472B2 (en) 2011-06-15
US20070086419A1 (en) 2007-04-19
EP1871041A3 (en) 2008-03-26
EP1777880A1 (en) 2007-04-25
JP2009512387A (en) 2009-03-19
US20070086417A1 (en) 2007-04-19
KR20060097695A (en) 2006-09-14
KR20060083931A (en) 2006-07-21
ATE432571T1 (en) 2009-06-15
KR20060083935A (en) 2006-07-21
KR100678273B1 (en) 2007-02-02
US20070115972A1 (en) 2007-05-24
JP2009512385A (en) 2009-03-19
EP1873975A3 (en) 2008-03-26
US20070086414A1 (en) 2007-04-19
EP1777879A1 (en) 2007-04-25
ES2326288T3 (en) 2009-10-06
EP1873974A2 (en) 2008-01-02
ES2308641T3 (en) 2008-12-01
US7672259B2 (en) 2010-03-02
US20070086416A1 (en) 2007-04-19
KR100615141B1 (en) 2006-08-23
JP4704471B2 (en) 2011-06-15
KR100615139B1 (en) 2006-08-22
EP1777880B1 (en) 2008-07-09
US20070086415A1 (en) 2007-04-19
US20070086413A1 (en) 2007-04-19
JP4704470B2 (en) 2011-06-15
US20070115970A1 (en) 2007-05-24

Similar Documents

Publication Publication Date Title
ES2326194T3 (en) METHOD AND APPLIANCE TO ASSIGN A TRANSMISSION PERIOD IN A WIRELESS COMMUNICATION SYSTEM AND CORRESPONDING SYSTEM.
CN101292447B (en) Method and apparatus for allocating transmission period in a wireless communication system, and system therefor
KR20180076770A (en) Apparatus and Method for distributed scheduling based on retransmission reservation slot in industrial wireless sensor network
US9844042B2 (en) System and method for indicating a periodic resource allocation
JP2001285299A (en) Tdd wireless communication system
KR20130125203A (en) Method of resource allocation for qos improvement according to transfer mode in wireless usb networks